Results 21 to 30 of about 895 (179)
, 2020 We report the solid-phase synthesis of N,N′-di(acylamino)-2,5-diketopiperazine, an acylhydrazide-based conformationally rigid 2,5-DKP scaffold having exocyclic N–N bonds.
Abdur Rahim (5699147) +9 more
core +4 more sources
Studies in Acid Anhydrides. Action of Semicarbazides on Anhydrides of Dibasic Acids.
, 1935 Studies in Acid Anhydrides.
B. K. BANERJEE
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A four-component modified Biginelli reaction: A novel approach for C-2 functionalized dihydropyrimidines. [PDF]
Turk J Chem, 2021 A novel four component modified Biginelli reaction for the synthesis of C-2 functionalized dihydropyrimidines has been established. The approach uses assembly of less explored acetyl acetone with aromatic aldehyde, thiourea, and dimethyl sulphate to ...
Narkhede H, Dhake A, Balasubramaniyan V.
europepmc +2 more sources
The action of semicarbazide on the aggregation of the tropocollagen macromolecule [PDF]
Biochemical Journal, 1967 1. A difference in conformation was found between the collagen in solutions treated with semicarbazide hydrochloride and those treated with sodium chloride. This difference could be correlated with the difference in extent of aggregation between the fibrils precipitated from these solutions. 2.
S, Convy, C H, Wynn
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, 2014 Novel primaquine semicarbazides 7a-l and ureas 9a-g with modified benzhydryl, trityl, phenyl or hydroxyalkyl substituents were prepared and evaluated for cytostatic and antioxidative activities.
Cindrić, M. +9 more
core +1 more source
مجلة بغداد للعلومIn this study, a novel series of compounds, derived from the drug naproxen, was synthesized, this series includes carbamates, ureas, semicarbazides, and 1,2,4-triazole derivatives, and the synthesis was achieved through a multi-step synthetic approach ...
Jihan A. Mustafa +2 more
doaj +1 more source
, 1982 Department of Chemistry, Lucknow University, Lucknow-226 007 Division of Experimental Medicine, C. D. R. I., Lucknow Manuscript received 9 March 1981, revised 18 March 1982 accepted 12 August 1982 Search for New Hypoglycemic Agents.
(Miss) KIRAN BALA GUPTA +2 more
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ANTAGONISM OF THE SPINAL ACTION OF DIAZEPAM BY SEMICARBAZIDE [PDF]
British Journal of Pharmacology, 1974 In spinal unanaesthetized cats, pretreatment with semicarbazide (200 mg/kg) 2–4.5 h prior to the administration of diazepam (1–4 mg/kg) completely blocked the enhancement of the segmental dorsal root reflex by the latter compound. Pyridoxine hydrochloride (200 mg/kg), given 3.5 h after semicarbazide, restored the spinal effect of diazepam administered ...
N R, Banna, S J, Jabbur, N E, Saadé
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Oxaziridines: Versatile Reagents in Modern Organic Synthesis
The Chemical Record, EarlyView.Being capable of transferring an O atom and N‐group/atom, oxaziridines are considered multitasking agents. These are employed for diverse organic transformations, such as epoxidation of olefins, α‐ and γ‐hydroxylation/amination of carbonyl compounds, oxidation of sulfides, [3+2]cycloaddition with unsaturated systems.
Ajeet Chandra +2 more
wiley +1 more source
Advances in organic UV filters for sunscreens over the past decade
Photochemistry and Photobiology, EarlyView.Highlighted organic UV filter frameworks that have been described for sunscreens over the past decade divided into three groups: derivatives of or inspired by approved organic UV filters, natural product‐based compounds, and miscellaneous. Abstract Ultraviolet (UV) radiation is a major environmental factor in photoaging, erythema, and skin cancer ...
Gabriela Zanella Marcon +4 more
wiley +1 more source